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physical object > natural object > celestial body > collection of stars > collection of galaxies > galaxy cluster > galaxy group |
galaxy group comparison table |
Subject | has number of galaxie | has definition |
---|---|---|
compact group | < 10 | Galaxy group with a few galaxies separated by a few galaxy diameters. |
loose group | 10 to 100 | Galaxy group with on the order of 10 galaxies separated by 10-100 galaxy diameters. |
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